JPH037192U - - Google Patents
Info
- Publication number
- JPH037192U JPH037192U JP6878989U JP6878989U JPH037192U JP H037192 U JPH037192 U JP H037192U JP 6878989 U JP6878989 U JP 6878989U JP 6878989 U JP6878989 U JP 6878989U JP H037192 U JPH037192 U JP H037192U
- Authority
- JP
- Japan
- Prior art keywords
- jacking device
- trunk section
- body part
- hollow body
- retractable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007599 discharging Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
第１図乃至第３図は本考案の実施例を示し、第
１図及び第２図は要部の作用状態を示す側断面図
、第３図は全体を示す一部断面側面図、第４図
，，，，，は変形例の作用状態を示す
側断面図、第５図は従来例を示す側断面図である
。 １……中空体、２……胴部、７Ａ，７Ｂ……補
強体。
１図及び第２図は要部の作用状態を示す側断面図
、第３図は全体を示す一部断面側面図、第４図
，，，，，は変形例の作用状態を示す
側断面図、第５図は従来例を示す側断面図である
。 １……中空体、２……胴部、７Ａ，７Ｂ……補
強体。
Claims (1)
- 【実用新案登録請求の範囲】 可撓性材料で截頭円錐筒状に形成した胴部２を
有する中空体１を備え、この中空体１内に気体を
注入又は排出させることで胴部２を上下方向に伸
縮自在としたジヤツキ装置において、 前記胴部２の上下方向中途部に、収縮時胴部２
の外側への膨出を規制して該胴部２を内側に引き
込むための帯状補強体７Ａ，７Ｂを周方向略全周
に亘つて設けたことを特徴とするジヤツキ装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6878989U JPH037192U (ja) | 1989-06-12 | 1989-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6878989U JPH037192U (ja) | 1989-06-12 | 1989-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH037192U true JPH037192U (ja) | 1991-01-23 |
Family
ID=31603527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6878989U Pending JPH037192U (ja) | 1989-06-12 | 1989-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037192U (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056442A (ja) * | 2004-08-23 | 2006-03-02 | Railway Technical Res Inst | 出発信号機の信号現示予告システム |
-
1989
- 1989-06-12 JP JP6878989U patent/JPH037192U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006056442A (ja) * | 2004-08-23 | 2006-03-02 | Railway Technical Res Inst | 出発信号機の信号現示予告システム |